Fix unicode error in nodehealth output
Fix unicode error in nodehealth output

If unicode data was in the incoming data, string.format would choke.  Make the
string template unicode so that it is able to cope.

jufm/confluent,chenglch/confluent,xcat2/confluent,xcat2/confluent,jufm/confluent,whowutwut/confluent,jjohnson42/confluent,whowutwut/confluent,jjohnson42/confluent,jjohnson42/confluent,chenglch/confluent,chenglch/confluent,jufm/confluent,whowutwut/confluent,whowutwut/confluent,chenglch/confluent,jufm/confluent,jjohnson42/confluent,chenglch/confluent,jjohnson42/confluent,jufm/confluent,xcat2/confluent,xcat2/confluent,xcat2/confluent